Paper Info
Title
Safety Appraisal of GNSS-Based Localization Systems Used in Train Spacing Control.
Abstract
The use of global navigation satellite systems (GNSS) will provide significant advantages for ensuring the control of train movements on railway networks equipped with European Rail Traffic Management System/European Train Control System (ERTMS/ETCS). Indeed, this disruptive technology can play an important role for reducing the rail infrastructure's equipment by enabling trains to determine their position in an autonomous way. Specific associated hazards have to be considered in the European signaling system. From this perspective, performances of GNSS-based localization systems were analyzed in different past studies. They highlighted what they can bring to the railway domain. For going further than performance-centric analyses to help inserting these systems safely in rail applications, this paper want also to focus on their operating uses. For that, the safety evaluation proposed in this paper is able to handle specific estimated confidence-related data that are associated to an estimated position. This paper first details the managed risks in ETCS due to the localization function with, in particular, those that may arise due to GNSS-based systems. It discusses the evolution of these risks when dealing with moving block operation of the ETCS-level 3. The safety evaluation approach is then explained. It relies in fact on extended integrity data handled in the case of the train spacing. Finally, it is applied in different operational cases to show evaluation results when real GNSS data are measured in a railway environment.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2807127
IEEE ACCESS
Keywords
Field
DocType
ERTMS,moving block,GNSS,localization integrity risk,railway safety assessment,probability of hazardous situation
Disruptive technology,Systems engineering,European rail traffic management system,Computer science,European Train Control System,GNSS applications,Rail transportation,Train,Valuation (finance),Signaling system,Distributed computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
J. Beugin1355.12
Cyril Legrand210.71
J. Marais38411.74
Marion Berbineau418534.15
El-Miloudi El-Koursi593.65